Analysis
- max time kernel
135s - max time network
104s - platform
windows10-2004_x64 - resource
win10v2004-20240419-en - resource tags
arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system - submitted
07/05/2024, 18:06
Behavioral task
behavioral1
Sample
27f83d67738bfee5fa2043735f76b945_NEAS.exe
Resource
win7-20240221-en
windows7-x64
11 signatures
150 seconds
Behavioral task
behavioral2
Sample
27f83d67738bfee5fa2043735f76b945_NEAS.exe
Resource
win10v2004-20240419-en
windows10-2004-x64
11 signatures
150 seconds
General
- Target 27f83d67738bfee5fa2043735f76b945_NEAS.exe
- Size 116KB
- Sample240507-wp8x2sbe56
- SHA256 7347abc0cfeaa1a0343174a0b3725e750a2edf5e47a76a3ac42e1736655ecc47
- MD5 27f83d67738bfee5fa2043735f76b945
- SHA1 aaf75539bcd35627239769bd51c339c5966df2c1
- SHA512 2f4ceda2f6dda76ecf1b41f25b789e33f014367c2c2f18b31c475167003d455a5df72a564ac033c8e8a7602e603da17246de8444b2356b216ff20b5372f9b081
- SSDEEP 3072:sr85CH7YI3tMyp7N0LwVn1qRGlZhCybMoR:k9Ht3tFV1q4s4lR
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Signatures
- Detect Neshta payload 4 IoCs
resource yara_rule behavioral2/files/0x000600000002024c-15.dat family_neshta behavioral2/memory/1260-99-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/1260-100-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta behavioral2/memory/1260-102-0x0000000000400000-0x000000000041B000-memory.dmp family_neshta - Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Executes dropped EXE 1 IoCs
pid Process 3428 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Modifies system executable filetype association 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Drops file in Program Files directory 64 IoCs
description ioc Process File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MOZILL~1\UNINST~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\INTERN~1\ieinstal.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MI391D~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~2.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\INTERN~1\iexplore.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~3.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~2\wab.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~2\wabmig.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmplayer.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MIA062~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WI8A19~1\ImagingDevices.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\INTERN~1\ielowutil.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpconfig.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Google\Update\DISABL~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MI9C33~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13185~1.29\MICROS~1.EXE 27f83d67738bfee5fa2043735f76b945_NEAS.exe File opened for modification C:\PROGRA~2\WINDOW~4\wmpshare.exe 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Drops file in Windows directory 1 IoCs
description ioc Process File opened for modification C:\Windows\svchost.com 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Modifies registry class 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" 27f83d67738bfee5fa2043735f76b945_NEAS.exe - Suspicious use of WriteProcessMemory 2 IoCs
description pid Process procid_target PID 1260 wrote to memory of 3428 1260 27f83d67738bfee5fa2043735f76b945_NEAS.exe 84 PID 1260 wrote to memory of 3428 1260 27f83d67738bfee5fa2043735f76b945_NEAS.exe 84
Processes
-
C:\Users\Admin\AppData\Local\Temp\27f83d67738bfee5fa2043735f76b945_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\27f83d67738bfee5fa2043735f76b945_NEAS.exe"1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1260 -
C:\Users\Admin\AppData\Local\Temp\3582-490\27f83d67738bfee5fa2043735f76b945_NEAS.exe"C:\Users\Admin\AppData\Local\Temp\3582-490\27f83d67738bfee5fa2043735f76b945_NEAS.exe"2⤵
- Executes dropped EXE
PID:3428
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
- Size 86KB
- SHA256 ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29
- MD5 3b73078a714bf61d1c19ebc3afc0e454
- SHA1 9abeabd74613a2f533e2244c9ee6f967188e4e7e
- SHA512 75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4
- SSDEEP 1536:JxqjQ+P04wsmJCNgh/sE/EkHd0Ci2zkQASqk+H6L2C:sr85CysEM6GC+QA8+HlC
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Temp\3582-490\27f83d67738bfee5fa2043735f76b945_NEAS.exe
- Size 75KB
- SHA256 8cb39f7f99f94bf7820ba46d2a4283692ff4c87088064c12966fbc6c09de5030
- MD5 95d4469473963934e5be0b39da5377ea
- SHA1 77bf7eb851de08e48dcc2ddc71c52d5dec67e644
- SHA512 f72619fb809c7af5adc6e7bf60e91f7ecea5c9aac412f3aa556d7a7588a4eb8aed6f5bb590f4f73f2f905d9b4b8b88c28d1ee0d14f7f54a2cfb22aef00d437f5
- SSDEEP 1536:ddf1cqV3gXlZhC4vBbM5GBbjAIYIpRk2MypnxFNCnLwL1bnz:mqRGlZhCybMoj7YI3tMyp7N0LwVnz
- MD5 SHA1 SHA512 SSDEEP